diff --git a/Source/OpenTK/Graphics/DisplayDevice.cs b/Source/OpenTK/Graphics/DisplayDevice.cs
index ed2b6d61..6b90dc30 100644
--- a/Source/OpenTK/Graphics/DisplayDevice.cs
+++ b/Source/OpenTK/Graphics/DisplayDevice.cs
@@ -384,7 +384,7 @@ namespace OpenTK.Graphics
                 foreach (Form form in forms)
                 {
                     form.Opacity += opacity_step;
-                    form.Update();
+                    form.Refresh();
                 }
                 Thread.Sleep(sleep_step);
             }
@@ -402,7 +402,7 @@ namespace OpenTK.Graphics
                 foreach (Form form in forms)
                 {
                     form.Opacity -= opacity_step;
-                    form.Update();
+                    form.Refresh();
                 }
                 Thread.Sleep(sleep_step);
             }
diff --git a/Source/OpenTK/Platform/X11/X11GLNative.cs b/Source/OpenTK/Platform/X11/X11GLNative.cs
index 95dc1321..44faa0da 100644
--- a/Source/OpenTK/Platform/X11/X11GLNative.cs
+++ b/Source/OpenTK/Platform/X11/X11GLNative.cs
@@ -82,7 +82,7 @@ namespace OpenTK.Platform.X11
 
             // Open the display to the X server, and obtain the screen and root window.
             //window.Display = API.OpenDisplay(null); // null == default display
-            window.Display = this.window.Display;
+            window.Display = API.DefaultDisplay;
             if (window.Display == IntPtr.Zero)
                 throw new Exception("Could not open connection to X");